Logo image
Terahertz Spectroscopy of Tetrameric Peptides
Journal article   Peer reviewed

Terahertz Spectroscopy of Tetrameric Peptides

Jens Neu, Elizabeth A Stone, Jacob A Spies, Golo Storch, Ayaka S Hatano, Brandon Q Mercado, Scott J Miller and Charles A Schmuttenmaer
The journal of physical chemistry letters, Vol.10(10), pp.2624-2628
05/16/2019
DOI: 10.1021/acs.jpclett.9b01091
PMCID: PMC6936601
PMID: 31039310
url
http://mediatum.ub.tum.de/node?id=1488688View
Open Access

Abstract

Determining the sequence and structure of peptides is crucial for understanding their structure–property relationships. Among many techniques, structures are typically elucidated using nuclear magnetic resonance spectroscopy and single crystal X-ray diffraction measurements. In this study, we present terahertz time-domain spectroscopy (THz-TDS) as a complementary, nondestructive technique that is sensitive to both the primary and secondary structures of tetrapeptides. Using only a few milligrams of peptide, THz-TDS spectra have been measured, some of which have been supported by density functional theory (DFT) calculations, to distinguish six tetrameric peptides with similar primary and secondary structures.

Details

Metrics

Logo image